Here is the June 2015 digital edition of Broadcast Engineering Extra

Inside the June 2015 issue: Transmitter efficiency has marched steadily forward since the first broadcasts early in the 20th century. Doherty amplification circuits have been around since the 1930s but really got noticed a few years ago when digital transmission became the standard on cell phone towers. TV transmitter manufacturers are adopting the technology, so we go inside Doherty amplifiers to see what's new about this old circuit design.   Tower Maintenance: Towers are a critical component of the broadcasting industry. Not only do they support the antennas that broadcasters use, they are valuable "vertical real estate" that holds microwave gear for remote news feeds and even leased communications equipment that bring a steady cash flow to stations. A tower can look perfectly healthy but still need immediate maintenance.>>More Also in this issue:  The meaning of broadcasting: *By registering, you are agreeing that we may share your registration information with the sponsors and the you may receive email messages from Broadcast Engineering Extra and other NewBay Media brands. View our entire Privacy Policy Follow TV Technology On: TVTechnology.com Customer Service eNewsletter

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